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(11)

EP 4 323 105 A1

(12)

(43) Date of publication: 21.02.2024 Bulletin 2024/08 (21) Application number: 22724520.6 (22) Date of filing: 12.04.2022

(51) International Patent Classification (IPC):  B01J 20/26(2006.01) B01J 20/32(2006.01) B01J 20/28(2006.01) C02F 1/28(2023.01) (52) Cooperative Patent Classification (CPC): B01J 20/28045; B01J 20/28038; B01J 20/262; B01J 20/3212; B01J 20/3214; B01J 20/3257; B01J 20/3293; B01J 20/3295; C02F 1/288; C02F 1/36; C02F 2305/08; C02F 1/285; C02F 2303/16; C02F 2101/301; C02F 2101/36; C02F 1/722; C02F 1/725; C02F 1/32 (86) International application number: PCT/US2022/024385 (87) International publication number: WO 2022/221256 (20.10.2022 Gazette 2022/42)

(84) Designated Contracting States: AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR Designated Extension States: BA ME Designated Validation States: KH MA MD TN (30) Priority: 12.04.2021 US 202163173785 P (71) Applicant: Claros Technologies Inc. St. Paul, MN 55114 (US)	(72) Inventors: ABBAS, Abdennour Falcon Heights, Minnesota 55108 (US) BROCKGREITENS, John Wilfrid Minneapolis, Minnesota 55418 (US) XIA, Zijie Edina, Minnesota 55439 (US) LESLIE, Evan Minneapolis, Minnesota 55415 (US) (74) Representative: Hartley, Lucinda Jane  Hargreaves Elsworth 26 Northumberland Square North Shields, Tyne and Wear NE30 1PW North Shields, Tyne and Wear NE30 1PW (GB)